Johannes spiel



2 Sheets-Sheet 1.

(No Model.)

J. SPIEL.

GAS ENGINE.

Patented Sept. 21, 1886.

N. PETERS. Phclo-Lnhographen Wnsllinglolh n. c. 4

(No Model.) 2 SheetsSheet 2.

J. SPIEL.

GAS ENGINE,

No. 349,464. figtented Sept. 21, 1886.

UNITED STATES PATENT OFFICE.

' JOHANNES SPIEL, OF BERLIN, GERMANY.

GAS-ENGINE.

SPECIFICATION forming part of Letters Application filed April I, 1885. Serial No. 161,502.

Patent No. 349,464, dated September 21, 1886.

(No model.) Patented in Germany March 3, 1885. No. 35,794; in England March 17, 1885, No. 3,414; in Belgium March 18,1885,No. 68,219; in France March 19, 1885, No. 167,742; in Russia March 31,

1885, No.-11.418 and in Austria June 16, 1885, No. 11,318.

167 ,7 42; in Belgium March 18,1885, No. 68,219,

and in Russia March 31, 1885, No. 11,418,) of which the following is a specification.

Theinvention in question refers to an engine worked by fluid petroleum or some other fluid combustible. For the production of a motive power a mixture of fluid combustible (petroleum, naphtha, benzinc, spirits of wine, &c.,) and atmospheric air or oxygen is introduced into the working-cylinder and caused to ex: plode. So far the process is the same as in other well-known machines. \Vith the first stroke of the piston the explosive mixture is sucked up during the whole course of the piston. Vith the second stroke the mixture is.

compressed. During the third stroke ignition at the dead-point takes place, then explosion and expansion follow--that is, working-power is produced. By the fourth stroke the ignited gases are expelled.

Referring to the accompanying drawings, Figure l is a side elevation; Fig. 4, a plan; Figs. 2, 3, 5, 6, 7, 8, and 9, details of a machine allowing the introduction of a suitable explosive mixture, and the preparation of the same is effected by the apparatus shown on a large scale in Figs. 5 and 6, which consists of a combustible-oil pump, an inlet or mixture valve, while the precise ignition is effected by the arrangement shown in Fig. 7 and the movement of the ignition-valve.

The combustible-oil pump and the ignition or mixture valve are made independent of each other. The former consists of the cylinder 0, Fig. 5, and the piston k, and is driven by means of the lever h, which is coupled to a rod, :0, operated by a cam, 11, on shaft w. (See Figs. 1 and 8.) This cam (Z is so constructed that the combustible liquid is sucked into the piston-chamber and fed therefrom to l the working-cylinder in uniform quantities, which is a matter of great importance for the correct or perfect. working of the engine.

Under the pump 0 is placed the cock H, which effects the connection between the pump and the oil-receiver 0, Figs. 1 and 2, and also between thepump and the inlet-valve V. This cock is worked by the guide-rod h from the lever h in such a manner that during the period of suction, indicated by the quadrant I in Fig. 8, the position of the conical plug of the cock, is such that the quantity of combustible required in the pumpis introduced into the space above while the tube a, connected with the oil-receiver O, is closed. Only the combustible required in the pump can therefore reach the inlet-valve. During the periodsll, Ill, and IV, Fig. 8, the conical plug of the cock has been slightly moved,so that the inlet-pipez is closed, and, on the contrary, the connection between the pump and the oilreceiver is opened. These alternating connections are accomplished by means of a recess, a, situated in the conical plug of the cock, Fig. 9, and partly surrounding the same.

The pump-piston 7c is attached to lever h by means of a screw-coupling, h k, Fig. 5, and, by adjusting the latter, the stroke of the piston 70 can be adjusted at pleasure, and thus the quantity of the explosive material conveyed to the working-cylinder can be regulated to a ate connection with the combustible-pump, is regulated in the same manner; but, as already mentioned, by a special lever, 11 h, Fig. 3. To the coupling of the lever with the inlet-valve o k, Fig. 5, is also attached a regulating apparatus, by which the stroke of the valve can be stopped at pleasure for the purpose of regulating the inlet-opening for the atmospheric air entering the working-cylinder of the machine through the tube It, Figs. 3 and 5, so that the quantity of air can be made proportionate to the combustible entering the machine at the same time. This arises from the circumstance that the valveVon reaching the lowest point on its downstroke approaches more or less the edge of the opening 0, Fig. 5,

the valve V' by the pipe 2,

nicety. The inlet-valveV, placed in immediof the inlet-tube E, so that more or less free space is left for the entry of the explosive mixture in the tube E.

In order to keep the mixture of air and combustible conveyed to the valve V for awhile before the entry to the working-cylinder, and thus insure a more thorough mixture, the inlet-tube E, Figs. 2, 3, and 5, is attached to the cylinder, and its sectional area must lie within certain limits,whicli are always determined by the dimensions or working-power of the machine. The recess t, situated in the flange of the inlet-tube, serves to restrain such combustible as may not be sufficiently vaporized and therefore is still fluid, then to give it a gyratory motion with the air or mixture entering the machine, and so to effect the volatilization of the combustible, and, as far as possible, prevent its entering the cylinder in a fluid state. The valve V is regulated by the cam D, Fig. 8, and held by the same at an equal distance above the opening during the period of suction.

The ignition apparatus employed for this machine consists ot'an ignition-slide, which is drawn back by the springf after the gas in the burner of the slide has been ignited by the outer flame, which is accomplished by the form given to the actuating eccentric cam,and thus the ignition of the explosive mixture is securel y effected. If, in this contrivance, the ignition-slide moves more slowly, the flame in the burner of the slide is extinguished and -no ignition takes place. To prevent the drivingroller from striking against the eccentric when the slide is drawn back, the latter is provided at its other end with a peculiar checking appliance,consisting of the check-spring Z), which moves between two rollers, g g, and whose ends are gradually strengthened, so that they exercise a gradually-increasing resistance by the pressure between the rollers y, when the slide is drawn back, and thus gradually slacken the movement of the slide until it stops quite still before the driving-roller of the eccentric. I

WVhat I claim is-- 1. The combustible-oil pump G,and the mixture orinlet valve V, connected with each other by a cock, H, the tube E, and recess 25, round the opening of the inlet-pipe, the cam d, and spring f, and the check-spring I), between two rollers g 9, all combined and operating as and for the purpose set forth.

2. The combination, with the working or piston chamber and an air-inlet chamber and valve, and an apparatus for feeding a combustible and explosive liquid substance to the former, ofa tube, E, which projects into the middle portion of said working-chamber and serves as an extended conductor for the com mingled air and explosive substance, as shown and described.

3. The combination, with the working-chamber, the air-inlet chamber and va1ve,andmechanism for feeding the combustible and explosive liquid to the former, of the tube E, having its head, which forms the bottom of the chamber below the air-valve, constructed with the recess 25, for the purpose of retaining the unvaporized portion of acharge of said liquid, as specified.-

4. Thecombination,with theworking-chamber, the air-inlet chamber and valve, mechanism for working the latter, and the pump for feeding the explosive liquid substance, of the rotatable cock H and means f0 connecting the latter with the pump and air-valve actuating mechanism, whereby said cock and the air-valve are operated simultaneously, thus insuring a uniform supply of uniform quantities of air and explosive substance,as specified,

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JOI-IANNES SPIEL. 

